Correct sendemail.smtppass

The code referenced the wrong configuration variable.  We really
meant sendemail.smtppass to be compatible with git-send-email's
configuration parameters.

Bug: issue 315
Change-Id: Ic11eafe84073f757d8e9ca7b92d97777e5163d06
Signed-off-by: Shawn O. Pearce <sop@google.com>
diff --git a/src/main/java/com/google/gerrit/server/mail/SmtpEmailSender.java b/src/main/java/com/google/gerrit/server/mail/SmtpEmailSender.java
index cb2fa67..d76d157 100644
--- a/src/main/java/com/google/gerrit/server/mail/SmtpEmailSender.java
+++ b/src/main/java/com/google/gerrit/server/mail/SmtpEmailSender.java
@@ -78,7 +78,7 @@
     smtpPort = cfg.getInt("sendemail", null, "smtpserverport", defaultPort);
 
     smtpUser = cfg.getString("sendemail", null, "smtpuser");
-    smtpPass = cfg.getString("sendemail", null, "smtpuserpass");
+    smtpPass = cfg.getString("sendemail", null, "smtppass");
     allowrcpt = cfg.getStringList("sendemail", null, "allowrcpt");
   }